FATIGUE PROPERTIES OF PARTICLE-REINFORCED METAL-MATRIX COMPOSITES

被引:23
|
作者
HOCHREITER, E
PANZENBOCK, M
JEGLITSCH, F
机构
[1] Institute of Metals Science and Materials Testing, University of Mining and Metallurgy, Leoben
关键词
FATIGUE-LIFETIME BEHAVIOR; 6061 ALUMINUM ALLOY COMPOSITES; CRACK PROPAGATION CURVES;
D O I
10.1016/0142-1123(93)90262-O
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
Fatigue-lifetime behaviour has been examined for extruded 6061 aluminium alloy composites reinforced with 15 vol% SiC and 10 vol% Al2O3 Particles. The peak particle sizes are at about 4.5 and 6 mum. Within measured S-N curves the fatigue lifetime at given stress amplitudes of SiC(p)/AA6061 is superior to that of Al2O3p/AA6061 in the low-cycle fatigue region as well as in the high-cycle fatigue region. These results are discussed by consideration of theoretically evaluated crack propagation curves.
引用
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页码:493 / 499
页数:7
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